1331202112 has 14 divisors (see below), whose sum is σ = 2641604318. Its totient is φ = 665601024.

The previous prime is 1331202107. The next prime is 1331202121. The reversal of 1331202112 is 2112021331.

It can be written as a sum of positive squares in only one way, i.e., 1061717056 + 269485056 = 32584^2 + 16416^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10399953 + ... + 10400080.

Almost surely, 2^1331202112 is an apocalyptic number.

It is an amenable number.

1331202112 is a deficient number, since it is larger than the sum of its proper divisors (1310402206).

1331202112 is an equidigital number, since it uses as much as digits as its factorization.

1331202112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20800045 (or 20800035 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1331202112 is about 36485.6425460756. The cubic root of 1331202112 is about 1100.0556754189.

Adding to 1331202112 its reverse (2112021331), we get a palindrome (3443223443).

The spelling of 1331202112 in words is "one billion, three hundred thirty-one million, two hundred two thousand, one hundred twelve".